Abstract
The larval rearing performance of California yellowtail (Seriola lalandi) and white seabass (Atractoscion nobilis) was compared between larvae fed taurine-supplemented rotifers (Brachionus plicatilis) and Artemia (Artemia franciscana) and control groups fed live feeds with no taurine enhancement. Results from the S. lalandi trial demonstrated that when fed taurine-supplemented rotifers, survival was significantly higher than the control group (20.1% vs. 9.1%, P < 0.01) as was notochord length (5.43 mm vs. 5.13 mm, P < 0.005). No larval performance differences were detected between experimental and control treatments of A. nobilis. Biochemical analyses demonstrated that taurine concentrations were significantly elevated in both S. lalandi (23.7 vs. 2.7 mg g−1, P < 0.001) and A. nobilis (33.0 vs. 21.0 mg g−1, P < 0.005) when live feeds were supplemented with taurine. Results suggest that taurine is a limiting nutrient in the larviculture of S. lalandi but may not be for A. nobilis.
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